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Woods Gonzalez & Woods Chapter 7 Wavelets and Multiresolution Processing... Woods Gonzalez & Woods Chapter 7 Wavelets and Multiresolution Processing... Woods Gonzalez & Woods Chapter 7 W

Trang 1

Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

Trang 2

Digital Image Processing, 3rd ed.

Trang 3

Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

Trang 4

Digital Image Processing, 3rd ed.

Trang 5

Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

Trang 6

Digital Image Processing, 3rd ed.

Trang 7

Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

Trang 8

Digital Image Processing, 3rd ed.

Trang 9

Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

Trang 10

Digital Image Processing, 3rd ed.

Trang 11

Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

Trang 12

Digital Image Processing, 3rd ed.

Trang 13

Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

Trang 14

Digital Image Processing, 3rd ed.

Trang 15

Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

Downsample by taking every second element

These coefficients correspond to neg n

Trang 16

Digital Image Processing, 3rd ed.

Trang 17

Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

Trang 18

Digital Image Processing, 3rd ed.

Trang 19

Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

Upsampling by adding a 0 every 2nd element

Trang 20

Digital Image Processing, 3rd ed.

Trang 21

Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

2D scheme

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Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

Note that the

Original

2 scales

1 scale

3 scales

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Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

Chapter 7

Wavelets and Multiresolution Processing

Wavelets - so what now?

As we have done image manipulation (filtering, smoothing, in spatial domain, frequency domain, etc.) it is possible to apply the same tools

in the wavelets formalism.

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Digital Image Processing, 3rd ed.

the approximation part

Modifying also the

horizontal detail

information

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Digital Image Processing, 3rd ed.

www.ImageProcessingPlace.com

© 1992–2008 R C Gonzalez & R E Woods

Gonzalez & Woods

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Digital Image Processing, 3rd ed.

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